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v3.10.0.1

Segment Reporting - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2017 Segment
Disclosure of operating segments [abstract] |
Number of operating segment | 1

X
- Definition Number of operating segments. + References No definition available. + Details
Name: | cpa_NumberOfOperatingSegments1
Namespace Prefix: | cpa_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration